[vsnet-alert 13159] Re: Outburst of the recurrent nova T Pyx !

[Rod Stubbings]

Recent observations on T Pyx. Leading up to the outburst T Pyx did
noticeably get brighter than it's normal state.

PYXT           110328.590   153  Stu.RASNZ
PYXT           110329.571   154  Stu.RASNZ
PYXT           110331.656   154  Stu.RASNZ
PYXT           110405.510   145  Stu.RASNZ
PYXT           110405.515   145  Stu.RASNZ
PYXT           110405.522   145  Stu.RASNZ
PYXT           110405.528   144  Stu.RASNZ
PYXT           110405.536   145  Stu.RASNZ
PYXT           110405.542   146  Stu.RASNZ
PYXT           110405.599   147  Stu.RASNZ
PYXT           110405.635   147  Stu.RASNZ
PYXT           110406.467   147  Stu.RASNZ
PYXT           110407.501   148  Stu.RASNZ
PYXT           110410.542   150  Stu.RASNZ
PYXT           110414.494   114  Stu.RASNZ

Regards,
Rod.

________________________________

Rod Stubbings,
Tetoora Observatory,
Tetoora Road,
Vic, Australia.
stubbo at sympac.com.au
http://rodstubbingsobservatory.wordpress.com/

_________________________________
----- Original Message ----- 
From: "Wolfgang Renz" <wr-astro at kabelbw.de>
To: "Sumner Starrfield" <sumner.starrfield at asu.edu>; "Bradley E. Schaefer"
<schaefer at lsu.edu>; "Daniel W. E. Green" <dwe_green at eps.harvard.edu>;
"Taichi Kato" <tkato at kusastro.kyoto-u.ac.jp>; "Ohshima"
<ohshima at kusastro.kyoto-u.ac.jp>; "Joe Patterson" <jop at astro.columbia.edu>;
"Elizabeth Waagen" <eowaagen at aavso.org>; "Matthew Templeton"
<matthewt at aavso.org>
Cc: "cba-chat" <cba-chat at cba.phys.columbia.edu>; "vsnet-alert"
<vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>; "vsnet-campaign-nova"
<vsnet-campaign-nova at ooruri.kusastro.kyoto-u.ac.jp>; "cba-news"
<cba-news at cba.phys.columbia.edu>; "vsnet-outburst"
<vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp>; "BAA-VSS Alert"
<baavss-alert at yahoogroups.com>; "AAVSO-DIS"
<aavso-discussion at mira.aavso.org>; "AAVSO-PHOTOMETRY"
<aavso-photometry at mira.aavso.org>; "AVSON" <AVSON at yahoogroups.com>
Sent: Thursday, April 14, 2011 9:08 PM
Subject: [vsnet-alert 13154] Outburst of the recurrent nova T Pyx !


Hello

The recurrent nova T Pyx is obviously going into outburst.

The last observed outburst started with a steep rise to mag 8 on ~ 7th Dec
1966,
reached 7 mag vis after an other month, and lasted ~ 280 d before it was
back to
quiescence again.
http://www.aavso.org/lcg/plot?auid=T%20Pyx&lastdays=400&start=&stop=2439800&obscode=&obscode_symbol=2&obstotals=yes&grid=on&visual=on&r=on&unknown=on&uband=on&iband=on&fainterthan=on&bband=on&j=on&v=on&h=on&unvalidated=on&differential=on&pointsize=1&width=800&height=600&mag1=&mag2=&mean=5&vmean=5
The GCVS says that previous outbursts were observed in 1890, 1902, 1920,
1944.

Congrats to Michael Linnolt to spot and announce this rare outburst (AFAIK)
first.

Clear skies
 Wolfgang

-- 
Wolfgang Renz, Karlsruhe, Germany


References:

From: "Steve Kerr"
To: aavso-discussion; AVSON; cvnet-outburst; vsnet-outburst
Sent: Thursday, April 14, 2011 12:56 PM
Subject: [AVSON] Re: [AAVSO-DIS] T PYX outburst?
> Hi,
> T Pyx appears to be rising quickly ...
> 20110414.44097 UTC PYXT 11.3 AAVSO Chart
> Observed with an 80mm refractor under bright moonlight ... it will
> have been a while since that was possible.
>
> Thanks,
> Steve Kerr
> Rockhampton, QLD
> Australia.


From: "Alan Plummer"
To: aavso-discussion
Sent: Thursday, April 14, 2011 10:29 AM UT
Subject: [AAVSO-DIS] T Pyx second estimate
> First estimate was 2455665.88472 12.2 used comp stars '120' and '125'
> on an old 'aavso preliminary chart'
> Second estimate = 2455665.93125 12.0 used the new chart where the
> '120' is no longer labelled. '122' and '115' are used.
> I trust the first estimate can be corrected by other people.
> alan

From: Alan Plummer
To: "Michael Linnolt"; aavso-discussion
Sent: Thursday, April 14, 2011 09:22 AM UT
Subject: Re: [AAVSO-DIS] T PYX outburst?
> T Pyx
> 2455665.88472 12.2 cloud moon
> best. alan

From: "Michael Linnolt"
To: aavso-discussion
Sent: Thursday, April 14, 2011 07:18 AM UT
Subject: [AAVSO-DIS] T PYX outburst?
> I observed it just now Apr 14 0702UT at v=13.0 I noticed it was around
> v=14.5 last night, but now its the brightest I have ever seen it!
> Mike Linnolt (LMK)

From: "Rod Stubbings"
To: vsnet-outburst; cvnet-outburst
Sent: Thursday, April 07, 2011 03:31 PM UT
Subject: [vsnet-outburst 12604] Recent activity
> Recent outbursts and selected activity observed the past few nights.
> PYXT           110405.510   145  Stu.RASNZ
> PYXT           110405.536   145  Stu.RASNZ
> PYXT           110405.599   147  Stu.RASNZ
> PYXT           110406.467   147  Stu.RASNZ
> PYXT           110407.501   148  Stu.RASNZ


From: "cvnet-circ-gen"
To: cvnet-circular
Sent: Monday, April 11, 2011 9:00 AM
Subject: [cvnet-circular] CV Circular for Mar 13, 2011 to Apr 11, 2011
> CVNET Circular   2011.04 (Mar. 13 - Apr. 11)   (JD 0d = 2455662)
> edited by M. Simonsen, C. Watson
> T PYX      (NRB) <146(16) <100(21) <115(27) <125(28) <140(29) 152(30)
> <125(31)
>           <140(1) <133(5) <125(10) AAX,ASA,BVS,LMK,MTH,PAW,SVA

VSX entry with further refs:
http://www.aavso.org/vsx/index.php?view=detail.top&oid=27184

AAVSO - Recent LC of T Pyx:
tp://www.aavso.org/lcg/plot?auid=T%20Pyx&lastdays=80&start=&stop=&obscode=&obscode_symbol=2&obstotals=yes&grid=on&visual=on&r=on&unknown=on&uband=on&iband=on&fainterthan=on&bband=on&j=on&v=on&h=on&unvalidated=on&differential=on&pointsize=1&width=800&height=600&mag1=&mag2=&mean=&vmean=

AAVSO - Quicklook data of T Pyx:
http://www.aavso.org/ql/results?auid=T%20Pyx&startjd=2455595
Name  JD            CalendarDate     Mag   Filter ComCodes Obsrvr. Err Comp1
Comp2 Trnsf Chart   Comments
T PYX 2455665.93125 2011 Apr 14.4313 12.0  Vis.   Z        PAW         122
115   N/A   4677EGZ

T Pyx 2455665.88472 2011 Apr 14.3847 12.2  Vis.   BUYS     PAW         120
125   N/A   aavso prelim chart
T PYX 2455665.79306 2011 Apr 14.2931 13.0  Vis.   Y        LMK         125
134   N/A   4510bp
T PYX 2455664.99375 2011 Apr 13.4938 <11.5 Vis.            MTH         11.5
N/A   040329
T PYX 2455664.85903 2011 Apr 13.3590 14.5  Vis.   BD       LMK         143
146   N/A   4510bp  brighter than usual + flaring
T PYX 2455663.96528 2011 Apr 12.4653 <12.5 Vis.            MTH         12.5
N/A   040329
T PYX 2455662.93819 2011 Apr 11.4382 <12.5 Vis.            MTH         12.5
N/A   040329
T PYX 2455661.95139 2011 Apr 10.4514 <12.5 Vis.            MTH         12.5
N/A   040329
T PYX 2455660.00486 2011 Apr 8.5049  <14.0 Vis.            PAW         140
N/A   040329
T PYX 2455657.4667  2011 Apr 5.9667  <13.3 Vis.            AAX         125
133   N/A   PD2-93
T PYX 2455653.33056 2011 Apr 1.8306  <12.5 Vis.   UL       BVS         125
N/A   3342cjj 8"S-C @ 206x
T Pyx 2455653.0729  2011 Apr 1.5729  <13.7 Vis.   K        SVA         13.7
N/A   NZ1072
T PYX 2455652.92292 2011 Apr 1.4229  <14.0 Vis.            PAW         140
N/A   040329
T PYX 2455651.96736 2011 Mar 31.4674 <12.5 Vis.            MTH         12.5
N/A   040329
T PYX 2455650.81944 2011 Mar 30.3194 15.2  Vis.            LMK         151
154   N/A   3816g
...
AAX  AMORIM, ALEXANDRE BRAZIL
BVS  BOLZONI, SIMONE ITALY
LMK  LINNOLT, MICHAEL USA
MTH  MATSUYAMA, HIROSHI AUSTRALIA
PAW  PLUMMER, ALAN AUSTRALIA
SVA  SAW, ADRIAN AUSTRALIA